This program displays data using a PGPLOT device. The following file types are supported:

• DAS .spec filterbank format
• SIGPROC .fil filterbank format (including the headerless version, provided a .fhd configuration file is present in the same directory)
• SIGPROC .tim time series format
• PRESTO .dat time series format

For time series data, plots are scaled by the absolute minimum and maximum values in the data. If the baseline is non-flat, the --no-abs-scale option may need to be given for proper viewing (see below).

Usage:

The options are:

• -h or --help: Display this usage information
• -s or --skip time: Length of data to be skipped, in seconds (default is 0 s).
• -p or --proc time: Length of data to be processed, in seconds (default is all data).
• -n or --nsamp samples: Number of time samples read in one block (default is 4096 samples).
• -c or --clip-level level: Number of sigmas above threshold; will clip anything above this level.
• -a or --no-abs-scale: Use relative scale for plotting per block.
• -t or --period period: Period of the pulsar in ms.
• -r or --phase phase: Phase of the first pulse with respect to the first sample.
• -m or --colour-map name: Colour map for plotting. Supports some of the standard MATLAB colour maps, plus a few more. Valid colour map names are given below (default is 'jet').
  • 'autumn'
  • 'blue'
  • 'bone'
  • 'cool'
  • 'copper'
  • 'gray'
  • 'gray-inv'
  • 'hot'
  • 'hot-inv'
  • 'jet'
  • 'pink'
  • 'spring'
  • 'summer'
  • 'winter'
  • 'RdBu'
  • 'BuRd'
• -i or --invert: Invert background and foreground colours in plots (default is white on black).
• -e or --non-interactive: Run in non-interactive mode.
• -v or --version: Display the version.

Example:

This run displays the contents of the SIGPROC filterbank file data.fil, with 8192 time samples per plot, and using the 'copper' colour map.

The following displays the contents of the PRESTO dedispersed time series file data.dat in the /data directory.